Supplemental Security Income (SSI) is a nationwide federal assistance program in the United States that acts as a safety net and guarantees a minimum level of income for needy aged, blind, or disabled individuals. The federal SSI is a monthly transferred cash assistance, provided by means test. The main aim of the program is to help people who have limited resources and little or no Social Security or other income. SSI is an important part of the American welfare state. It was a part of the Social Security Amendments of 1972, signed on October 30 by President Nixon to reform the welfare programs of America. There were similar programs, such as Aid to the Blind, Aid to the Permanently and Totally Disabled, and Aid to ...